xs:dateTime and timezone problems

[eastlands]

Not sure if this is an xml or a ado.net question:

I have created an xml document from a .net dataset which contains a
DateTime column, however all the time elements are set to 00:00:00.
example of xml created:
<Date>2005-06-03T00:00:00.0000000+01:00</Date>

I am based in the UK and my computer timezone is set to GMT (although
the above data may have been created during DST).

If I load this xml document back into a dataset and save the results
into a sql table, I find that the time element remains zero (regardless
of it being DST or not).

If I change my computer timezone to Sydney (GMT + 10) I find that the
time element after importing to the database is either 09:00:00 or
11:00:00 depending on whether the date falls during DST.

This is causing problems as I want the time element to remain
unchanged, no matter what the timezone of the computer reading the xml
back into an sql database.

I am happy to exit the xml file created manually to achieve this.
How can I specify that the time element should not get converted, no
matter what the local timezone?
Any help appreciated.

Stuart Eastland